Microhymenoptera

Guides

Aulogymnus
Aulogymnus is a genus of chalcidoid wasps in the family Eulophidae, first described by Förster in 1851. Members of this genus are small parasitoid wasps, part of a diverse family that primarily parasitizes other insects. The genus has been recorded from Europe and Asia. Specific biological details for the genus as a whole remain poorly documented in accessible literature.
parasitoid Eulophidae Chalcidoidea Hymenoptera Palearctic wasps insects arthropods entomology taxonomy Förster-1851 Denmark Spain Tibet China Europe Asia minute-wasps chalcid-wasps Eulophinae Terebrantes Apocrita Hexapoda Animalia Arthropoda Insecta Aulogymnus small-wasps tiny-wasps parasitic-wasps biological-control insect-parasitoids systematics morphology identification keys Nearctic Oriental Xizang citizen-science iNaturalist observations records distribution Förster 1851 genus accepted valid synonymy chalcidoid chalcid chalcids eulophid eulophids eulophid-wasps eulophines parasitoid-wasps parasitic-Hymenoptera biological-control-agents insect-diversity biodiversity fauna entomological hymenopteran arthropod hexapod hexapods pterygote pterygotes endopterygote endopterygotes holometabolous holometabola tiny-insects minute-insects small-insects microhymenoptera micro-wasps micro-parasitoids micro-chalcids micro-eulophids wing-venation antennae thorax diagnostic-characters taxonomic-keys identification-keys generic-keys Nearctic-fauna European-fauna Asian-fauna Tibetan-fauna Spanish-fauna Danish-fauna poorly-known data-deficient understudied cryptic-diversity host-unknown biology-unknown life-history-unknown ecology-unknown distribution-records occurrence-records specimen-records museum-records database-records GBIF Catalogue-of-Life NCBI Wikipedia Universal-Chalcidoidea-Database Key-to-Nearctic-eulophid-genera literature sources references citations bibliography original-description type-species type-locality nomenclature systematic-entomology hymenopterology chalcidology parasitology biological-control-research integrated-pest-management IPM agricultural-entomology forest-entomology medical-entomology veterinary-entomology urban-entomology conservation-entomology insect-ecology community-ecology population-ecology behavioral-ecology evolutionary-ecology phylogenetics phylogeny molecular-systematics DNA-barcoding taxonomy-and-phylogeny classification biodiversity-informatics biogeography historical-biogeography phylogeography dispersal vicariance speciation diversification evolution adaptation natural-selection sexual-selection life-history-evolution host-parasitoid-interactions coevolution tritrophic-interactions food-webs ecosystem-services natural-enemies biocontrol augmentative-biological-control classical-biological-control conservation-biological-control invasive-species-management pest-management sustainable-agriculture organic-farming agroecology ecosystem-health environmental-monitoring bioindicators indicator-species climate-change global-change habitat-loss fragmentation conservation-status IUCN red-list not-evaluated research-needs knowledge-gaps future-research priorities specimen-collection vouchering museum-collections natural-history-collections digitization data-sharing open-science FAIR-principles citizen-science-contributions community-science public-engagement science-communication education outreach natural-history insect-watching wasp-watching nature-observation biodiversity-appreciation
Ceraphronoidea
Ceraphronoidea is a small superfamily of minute parasitoid and hyperparasitoid wasps (0.5–4 mm body length) comprising two families: Ceraphronidae and Megaspilidae. Approximately 740 species have been described globally, though estimates suggest true diversity may reach 12,000–21,000 species. The group is among the most severely understudied parasitoid wasp lineages, with over 80% of species having unknown host associations. First described by Alexander Henry Haliday, Ceraphronoidea has been historically difficult to study due to morphological challenges including monotonous external morphology, extreme sexual dimorphism, and reduced wing venation.
parasitoid hyperparasitoid microhymenoptera dark-taxon sexual-dimorphism reduced-wing-venation understudied-diversity
Cynipoidea
Gall Wasps and Allies
Cynipoidea is a superfamily of small wasps comprising approximately 3,000 described species across seven extant families, with many undescribed species estimated. The group exhibits diverse life histories: while the family Cynipidae (gall wasps) are phytophagous and induce plant galls, the majority of species are parasitoids or hyperparasitoids of other insects. The superfamily is taxonomically challenging, with family-level identification historically difficult until the publication of a comprehensive illustrated key in 2020.
parasitoid gall-former hyperparasitoid biological-control oak-forest inquiline alternation-of-generations undescribed-diversity reduced-wing-venation Hymenoptera Apocrita ecosystem-engineer plant-manipulation forest-insect agricultural-pest-control Drosophila-suzukii aphid-hyperparasitoid wood-borer-parasitoid dung-breeding-fly-parasitoid taxonomic-key gall-community nutrient-cycling phenology sexual-dimorphism parthenogenesis koinobiont idiobiont Palaearctic-diversity Nearctic-diversity Mediterranean-hotspot oak-gall rosinweed-gall goldenrod-gall introduced-species adventive-fauna New-Zealand-fauna Turkish-fauna broadleaf-forest prairie-habitat agricultural-system soft-fruit-pest integrated-pest-management biocontrol-agent extension-entomology microhymenoptera morphological-key couplet-identification metasomal-fusion petiole-reduction glossy-integument compressed-body prognathous-head flagellomere-reduction notauli-reduction pterostigma-presence hamuli-presence ovipositor-structure hypopygium-development larval-chamber locularity-formation host-genome-exploitation room-service-nutrition defensive-immune-suppression SWD-biocontrol eucoiline-wasp charipine-hyperparasitoid anacharitine-parasitoid emarginine-parasitoid figitine-parasitoid ibaliine-parasitoid liopterine-parasitoid diplolepidine-gall-former pediaspine-gall-former aulacideine-gall-former aylacine-gall-former ceroptresine-inquiline cynipine-gall-former diastrophine-gall-former eschatocerine-gall-former phanacidine-gall-former qwaqwaiine-gall-former synergine-inquiline Beringian-biogeography Eocene-forest-separation climate-change-habitat-shift phenological-form-association early-oak-phenoform late-oak-phenoform Quercus-robur-gall-community Quercus-cerris-gall-community Quercus-ilex-gall-community Asteraceae-gall-former Eucalyptus-gall-former Rosaceae-gall-former Fagaceae-gall-former Brevicoryne-brassicae-hyperparasitoid Aphidiinae-hyperparasitoid Aphelinus-hyperparasitoid Ophelimus-parasitoid Mikeius-parasitoid Antistrophus-gall-former Neuroterus-gall-former Andricus-gall-former Cynips-gall-former Diplolepis-gall-former Callirhytis-gall-former Saphonecrus-inquiline Synergus-inquiline Lithosaphonecrus-inquiline Cerroneuroterus-gall-former Paraganaspis-parasitoid Triplasta-parasitoid Coneucoela-parasitoid Alloxysta-hyperparasitoid Phaenoglyphis-hyperparasitoid Xyalaspis-adventive Ganaspis-adventive Thoreauella-adventive Anacharis-native Kleidotoma-native Trybliographa-group Kleidotoma-group Gronotoma-group Rhoptromeris-group Ganaspis-group Chrestosema-group Zaeucoila-group Afrotropical-lineage Neotropical-lineage leaf-mining-agromyzid-parasitoid agromyzid-parasitoid cabbage-aphid-hyperparasitoid bovine-dung-dipteran-parasitoid cattle-dung-parasitoid pasture-ecosystem-service forest-biodiversity-indicator collection-based-taxonomy molecular-phylogenetics cladistic-analysis implied-weights-parsimony skeletal-character-coding digital-image-database Internet-accessible-database higher-level-phylogeny generic-classification-revision genus-group-system informal-genus-groups synapomorphy-discussion host-parasitoid-coevolution evolutionary-radiation tropical-parasitoid-diversity biodiversity-documentation scientific-nomenclature etymological-analysis host-based-species-naming geographic-naming morphological-naming dedication-naming taxonomic-communication biodiversity-informatics faunistic-survey new-country-record new-provincial-record new-genus-record new-species-description species-redescription dichotomous-key-construction character-couplet illustrated-identification microscope-photography specimen-imaging student-tested-key expert-consultation proofed-key extension-entomology-application stakeholder-education forest-management farm-management field-management ecosystem-service-valuation future-policy-implementation microhymenopteran-collection diagnostic-indicator-application objective-setting-for-conservation climate-change-monitoring habitat-fragmentation-response oak-stand-composition urban-oak-forest nursery-oak-cultivation geomorphic-topographic-structure-influence species-richness-pattern distribution-mapping host-plant-documentation gall-morphology-documentation seasonal-gall-collection multi-year-field-study province-level-inventory regional-fauna-characterization country-level-checklist global-fauna-overview adventive-species-dominance deliberate-introduction-history biological-control-introduction native-species-rarity endemic-species-presence collection-revision type-specimen-examination reared-specimen-basis diagnosis-illustration distribution-data-compilation host-relation-discussion biology-documentation natural-history-summary taxonomic-overview-provision faunal-knowledge-gap-identification research-accessibility-improvement entry-barrier-reduction cool-thing-discovery-enablement
Diapriinae
Diapriinae is a subfamily of minute parasitoid wasps within the family Diapriidae. Members are typically 1–8 mm in length, with most species averaging 2–4 mm. They are characterized by a distinctive ledge-like extension of the face above the clypeus (the "shelf face"), from which the antennae originate. The subfamily contains three tribes: Diapriini, Psilini, and Spilomicrini. Most species are parasitoids of Diptera larvae and pupae, particularly fungus gnats (Mycetophilidae and Sciaridae), though some lineages have evolved specialized associations with ants. Many species remain undescribed, with an estimated 4,500 species worldwide compared to approximately 2,300 currently described.
parasitoid-wasps myrmecophily Diptera-parasitoids microhymenoptera shelf-faced-wasps biological-control undescribed-species-diversity
Holcencyrtus
Holcencyrtus is a genus of parasitoid wasps in the family Encyrtidae, subfamily Tetracneminae, established by Ashmead in 1900. The genus is represented in the UCR Entomology Research Museum by at least three species: H. gonzalezi Trjapitzin, H. myrmicoides (Compere & Zinna), and H. osborni (Timberlake). Specimens have been collected from Mexico and preserved both as pinned specimens and microscope slides. The genus belongs to a large and taxonomically important group of microhymenoptera that are significant biological control agents.
parasitoid microhymenoptera biological-control
Oligositini
Oligositini is a tribe of minute parasitoid wasps within the family Trichogrammatidae, established by Viggiani in 1971. Members of this tribe are classified in the subfamily Oligositinae. These chalcid wasps are among the smallest known insects, with most species measuring less than 1 mm in length. The tribe is distinguished by specific wing venation patterns and antennal structures that separate it from related trichogrammatid tribes.
Hymenoptera Chalcidoidea Trichogrammatidae parasitoid-wasps microhymenoptera
Omphale
Omphale is a genus of minute parasitoid wasps in the family Eulophidae, first described by Alexander Henry Haliday in 1833. These tiny chalcidoid wasps are part of the diverse Entedoninae subfamily, which contains numerous species that parasitize other insects. The genus has a wide geographic distribution including Europe and Asia, with recent taxonomic work documenting multiple species from China. Like other eulophids, Omphale species are likely associated with vegetation where their hosts occur, though specific host relationships remain poorly documented for most species.
parasitoid Eulophidae Entedoninae Chalcidoidea microhymenoptera
Omyomymar
Omyomymar is a genus of minute parasitoid wasps in the family Mymaridae, first described by Schauff in 1983. Members of this genus are extremely small, consistent with other fairyflies in the family. The genus has been recorded from both the Neotropical region and the Nearctic region.
Mymaridae fairyflies egg-parasitoid parasitoid-wasp microhymenoptera
Perilampus platigaster
A minute parasitic wasp in the family Perilampidae, measuring 1.3–5.5 mm in length. Many individuals display brilliant metallic green or blue coloration, though some are entirely black. The species is a hyperparasitoid, with larvae that parasitize other parasitic insects, typically tachinid flies, ichneumon wasps, or braconid wasps living inside caterpillars or other insect larvae. Females broadcast eggs on vegetation and bark; hatched planidium larvae actively seek hosts by attaching to moving objects.
parasitoid hyperparasitoid planidium metallic broadcast-oviposition Chalcidoidea microhymenoptera
Polynema
fairyflies, fairy wasps
Polynema is a genus of fairyflies in the family Mymaridae, comprising approximately 270 described species. These are among the smallest known insects, with adults typically measuring less than 1 mm. The genus is taxonomically challenging, currently treated as a conglomerate of poorly defined related groups classified into subgenera including P. (Polynema), P. (Doriclytus), and P. (Dorypolynema). Members are idiobiont endoparasitoids of insect eggs, attacking hosts across multiple orders including Hemiptera, Coleoptera, Hymenoptera, Orthoptera, Psocoptera, and Odonata. The genus has cosmopolitan distribution with significant diversity in the Neotropical, Palaearctic, and Oriental regions.
egg-parasitoid biological-control microhymenoptera idiobiont Mymaridae fairyfly pest-management Hemiptera-parasitoid
Prionomitus
Prionomitus is a genus of parasitic wasps in the family Encyrtidae, first described by Mayr in 1876. Members of this genus are chalcidoid wasps, a group characterized by their minute size and parasitoid lifestyle. The genus is represented in major entomological collections, including substantial holdings at the University of California, Riverside. Specific biological details for the genus remain limited in published literature.
parasitoid chalcidoid microhymenoptera
Tapinella undescribedtx
Tapinella undescribedtx is an undescribed species of parasitoid wasp in the family Platygastridae, a group known for minute body size and egg parasitism. The species epithet "undescribedtx" indicates this taxon has been recognized but not formally described in scientific literature, likely based on specimens from Texas. Platygastridae are among the smallest known insects, with many species measuring less than 1 mm in length. Members of this family are ecologically significant as parasitoids of insect eggs, particularly those of true bugs (Hemiptera).
parasitoid undescribed Texas-endemic microhymenoptera
Tetramesa
Tetramesa is a genus of minute phytophagous wasps in the family Eurytomidae comprising over 200 described species. Members are exclusively associated with grasses (Poaceae), where they typically induce stem or inflorescence galls. The genus exhibits pronounced host specificity, with most species restricted to a single grass species or closely related congeners. Several species have been deployed as biological control agents against invasive grasses, including T. romana for giant reed (Arundo donax) and candidate agents for medusahead (Taeniatherum caput-medusae) and African lovegrass (Eragrostis curvula). Adults feed on nectar. Recent phylogenomic studies have synonymized the genera Aiolomorphus and Cathilaria within Tetramesa.
biological-control gall-wasp grassland invasive-species-management host-specificity cryptic-species phylogenomics Eurytomidae Chalcidoidea Hymenoptera phytophagy Poaceae stem-gall inflorescence-gall integrated-pest-management riparian-restoration molecular-systematics species-delimitation GMYC COI 28S biocontrol-agent Arundo-donax giant-reed medusahead African-lovegrass Eragrostis Sporobolus barley-jointworm integrated-taxonomy Southern-Hemisphere-diversity grassland-expansion Miocene-diversification monophagy host-range-testing non-target-effects tick-habitat cattle-fever-tick Rio-Grande Big-Bend-National-Park greenhouse-rearing oviposition-behavior water-deficit-stress generation-time parasitoid Eurytoma-amicophaga Eurytominae Walker-1848 Terebrantes Apocrita microhymenoptera minute-wasp reduced-wing-venation antennal-segmentation mesosoma-sculpture ovipositor molecular-operational-taxonomic-units MOTU species-boundaries cryptic-diversity sampling-effects SPEDE-sampler host-genetic-proxies field-host-range no-choice-testing native-Australian-species non-target-risk host-phylogeny target-weed suppression topping mechanical-control integrated-weed-management native-vegetation-recovery light-penetration canopy-structure dispersal establishment post-release-evaluation adventive-population Austin-Texas Idaho England Wales Orissa Canary-Islands Canary-Is.Mediterranean South-Africa southern-Africa Northern-Hemisphere Australia North-America Texas California Greece central-Asia Iran Ukraine Moldova Russia Israel Tajikistan Japan Eragrostis-curvula Sporobolus-pyramidalis Sporobolus-natalensis Sporobolus-africanus Hyparrhenia-hirta Andropogon-gayanus Eragrostis-plana Eragrostis-planiculmis Eragrostis-biflora Eragrostis-capensis Eragrostis-trichophora Deschampsia-caespitosa Deschampsia-setacea Taeniatherum-caput-medusae Hordeum barley Phragmites common-reed Dactylis-glomerata orchardgrass Poales grass graminoid cereal-crop pasture rangeland invasive-weed noxious-weed habitat-structure ecosystem-functioning naturalised-species alien-grass donor-country receiver-country biocontrol-practitioner host-plant-resistance internode-infestation oviposition-preference behavioral-categories antennae-attitude laboratory-artifact polyphagy specialist generalist climate-fluctuation molecular-clock dated-analysis phylogenetic-clade intrapopulation-variation geographic-sub-structuring singleton-effect overestimation consensus-delimitation operational-taxonomic-unit integrative-taxonomy evidence-line caveat putative-species novel-taxon undescribed-species biodiversity-assessment faunal-survey field-collection genetic-sequence mitochondrial-DNA nuclear-DNA cytochrome-c-oxidase-I ribosomal-DNA internal-transcribed-spacer chloroplast-DNA rps16 rpl32 trnK trnL ITS plant-insect-interaction herbivore phytophage primary-consumer trophic-level food-web community-ecology restoration-ecology conservation-biological-control classical-biological-control 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density-dependence density-independence population-regulation population-dynamics life-table survivorship fecundity reproductive-rate intrinsic-rate-of-increase doubling-time carrying-capacity population-growth exponential-growth logistic-growth Allee-effect stochasticity environmental-variation demographic-variation genetic-variation phenotypic-plasticity local-adaptation evolutionary-response coevolution arms-race escape-and-radiate diversification-rate speciation extinction phylogenetic-diversity functional-diversity taxonomic-diversity alpha-diversity beta-diversity gamma-diversity species-richness species-evenness species-abundance-distribution rank-abundance-curve diversity-index Shannon-index Simpson-index evenness-index dominance-index similarity-index dissimilarity-index cluster-analysis ordination principal-component-analysis principal-coordinate-analysis non-metric-multidimensional-scaling canonical-correspondence-analysis redundancy-analysis variation-partitioning structural-equation-modeling path-analysis meta-analysis systematic-review evidence-synthesis research-priority knowledge-gap data-deficiency IUCN-Red-List conservation-status protected-area management-plan monitoring-protocol adaptive-management stakeholder-engagement policy-recommendation legislation regulation incentive market-based-instrument payment-for-ecosystem-services carbon-credit biodiversity-offset habitat-banking conservation-easement land-trust stewardship sustainable-agriculture organic-farming agroecology precision-agriculture conservation-tillage cover-cropping crop-rotation intercropping agroforestry silvopasture riparian-buffer filter-strip grassed-waterway wetland-restoration prairie-restoration savanna-restoration forest-restoration degraded-land abandoned-land marginal-land set-aside wildlife-corridor habitat-connectivity landscape-matrix patch-dynamics edge-effect interior-habitat core-area buffer-zone permeability resistance least-cost-path circuit-theory isolation-by-distance isolation-by-resistance gene-flow genetic-drift inbreeding outbreeding hybridization introgression admixture population-structure genetic-differentiation FST GST D allele-frequency haplotype genotype phenotype quantitative-trait morphological-trait behavioral-trait life-history-trait reproductive-trait survival-trait developmental-trait physiological-trait metabolic-trait stress-response immune-response defense-trait resistance-trait tolerance-trait avoidance-trait antipredator-defense chemical-defense mechanical-defense crypsis mimicry aposematism startle-display thanatosis autotomy regeneration compensatory-growth induced-defense constitutive-defense direct-defense indirect-defense volatile-organic-compound extrafloral-nectar domatia mutualism ant-plant-mutualism pollination-mutualism seed-dispersal-mutualism protection-mutualism nutrition-mutualism transport-mutualism cleaning-mutualism agricultural-mutualism domestication crop-wild-relative landrace cultivar variety breeding selection genetic-improvement yield quality stress-tolerance nutrient-use-efficiency water-use-efficiency photosynthetic-efficiency harvest-index grain-filling source-limitation sink-limitation assimilate-transport phloem-loading phloem-unloading remobilization senescence stay-green antioxidant reactive-oxygen-species oxidative-stress heat-stress cold-stress drought-stress salinity-stress metal-stress nutrient-deficiency nutrient-toxicity soil-pH soil-texture soil-structure soil-organic-matter soil-microbial-community rhizosphere mycorrhiza nitrogen-fixation phosphorus-solubilization potassium-mobilization micronutrient-uptake allelopathy competition facilitation niche-differentiation resource-partitioning temporal-partitioning spatial-partitioning morphological-partitioning physiological-partitioning phenological-partitioning competitive-exclusion competitive-displacement priority-effect founder-effect mass-effect species-sorting neutral-theory ecological-drift dispersal-limitation environmental-filtering biotic-filtering abiotic-filtering trait-based-approach functional-trait response-trait effect-trait community-assembly community-disassembly community-reassembly succession primary-succession secondary-succession pioneer-species climax-species keystone-species ecosystem-engineer foundation-species dominant-species subordinate-species transient-species resident-species migrant-species nomadic-species irruptive-species invasive-species naturalized-species casual-species established-species spreading-species widespread-species restricted-species endemic-species cosmopolitan-species disjunct-distribution relict-distribution refugium glacial-refugium interglacial-refugium postglacial-colonization range-shift range-expansion range-contraction range-fragmentation source-population sink-population metapopulation population-viability minimum-viable-population effective-population-size genetic-rescue demographic-rescue assisted-migration 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landmark-cues odor-plume wind-direction sun-compass star-compass moon-compass magnetic-compass inertial-navigation path-integration cognitive-map spatial-memory temporal-memory episodic-memory procedural-memory associative-learning operant-conditioning classical-conditioning habituation sensitization song-learning tool-use problem-solving innovation social-learning cultural-transmission teaching cooperation altruism kin-selection reciprocal-altruism group-selection multilevel-selection selfish-gene inclusive-fitness reproductive-skew dominance-hierarchy territoriality home-range activity-center den-site nest-site roost-site singing-post display-site lek arena scrape burrow cavity crevice hole tunnel gallery chamber cell comb paper-nest mud-nest silk-nest spun-cocoon pupal-case ootheca egg-mass clutch brood litter covey pack herd flock colony society superorganism eusociality cooperative-breeding communal-breeding polygyny polyandry promiscuity monogamy serial-monogamy genetic-monogamy social-monogamy extra-pair-copulation sperm-competition cryptic-female-choice sexual-selection intersexual-selection intrasexual-selection mate-choice mate-guarding mate-switching divorce widowhood mate-replacement breeding-season breeding-cycle breeding-attempt breeding-success fledging-success recruitment juvenile-survival adult-survival longevity life-expectancy maximum-lifespan aging telomere oxidative-damage mitochondrial-dysfunction cellular-senescence apoptosis necrosis autophagy proteostasis DNA-repair epigenetic-modification transgenerational-effect maternal-effect paternal-effect parental-care maternal-care paternal-care biparental-care alloparental-care brood-care egg-care larval-care pupal-care food-provisioning nest-defense territory-defense predator-defense disease-defense parasite-defense hygiene-behavior grooming nest-cleaning cannibalism siblicide infanticide filial-cannibalism sexual-cannibalism cannibalistic-oophagy trophic-egg regurgitation trophallaxis food-sharing information-sharing alarm-call mobbing distraction-display broken-wing-display tailing persecution attack escape flight fight freeze faint death-feigning tonic-immobility startle-response withdrawal avoidance dishabituation latent-inhibition blocking overshadowing relative-validity conditioned-inhibition spontaneous-recovery renewal reinstatement rapid-reacquisition latent-learning insight-learning observational-learning vicarious-learning emulation imitation social-facilitation social-inhibition audience-effect bystander-effect conformity obedience compliance commitment consistency foot-in-the-door door-in-the-face low-ball that's-not-all sunk-cost endowment-effect loss-aversion risk-aversion risk-seeking probability-weighting hyperbolic-discounting temporal-discounting intertemporal-choice optimal-foraging marginal-value-theorem prey-choice patch-choice diet-breadth central-place-foraging load-size travel-time handling-time search-time encounter-rate prey-density prey-profitability prey-handling prey-detection prey-pursuit prey-capture prey-consumption prey-rejection ingestion-rate digestion-rate assimilation-efficiency production-efficiency ecological-efficiency trophic-transfer-efficiency Lindeman-efficiency ten-percent-rule pyramid-of-numbers pyramid-of-biomass pyramid-of-energy food-chain trophic-network energy-flow material-cycling biogeochemical-cycle carbon-cycle nitrogen-cycle phosphorus-cycle sulfur-cycle water-cycle hydrological-cycle atmospheric-circulation ocean-circulation thermohaline-circulation El-Niño La-Niña ENSO NAO AO PDO AMO climate-oscillation climate-anomaly weather-extreme drought flood heat-wave cold-snap storm hurricane typhoon cyclone tornado thunderstorm lightning wildfire volcanic-eruption earthquake tsunami landslide avalanche meteor-impact mass-extinction background-extinction speciation-rate extinction-rate net-diversification turnover standing-diversity fossil-record taphonomy preservation-bias sampling-bias collection-bias publication-bias citation-bias language-bias geographic-bias temporal-bias taxonomic-bias size-bias abundance-bias habitat-bias facies-bias Lagerstätte Konservat-Lagerstätte Konzentrat-Lagerstätte trace-fossil body-fossil chemical-fossil molecular-fossil biomarker isotope-signature paleoclimate-proxy paleoecology paleobiogeography paleoecosystem paleocommunity paleoenvironment paleogeography paleolatitude paleolongitude continental-drift plate-tectonics seafloor-spreading subduction orogeny mountain-building basin-formation sedimentation erosion weathering soil-formation pedogenesis horizon-development profile-development chronosequence toposequence biosequence climosequence landform geomorphology topography relief elevation slope aspect curvature roughness drainage watershed catchment basin subbasin reach segment zone riffle pool run glide cascade waterfall wetland marsh swamp bog fen mire peatland tundra taiga boreal-forest temperate-forest temperate-rainforest temperate-grassland tropical-forest tropical-rainforest tropical-dry-forest tropical-savanna tropical-grassland desert hot-desert cold-desert semiarid steppe prairie pampas veld savanna woodland shrubland chaparral maquis garigue fynbos kwongan mallee mulga mogote karst cave sinkhole doline polje uvala ponor spring seep oasis wadi arroyo gully ravine canyon gorge valley dale glen strath rift graben horst fault fold anticline syncline monocline dome plateau mesa butte escarpment bluff cliff crag tor inselberg bornhardt kopje hill knoll mound ridge spur saddle pass col gap notch cleft fissure joint bedding-plane foliation lineation cleavage schistosity gneissic-banding magma lava igneous-rock sedimentary-rock metamorphic-rock mineral crystal grain texture structure fabric composition chemistry mineralogy petrology geochemistry geophysics geochronology radiometric-dating isotopic-dating dendrochronology varve-chronology lichenometry archaeomagnetism paleomagnetism thermoluminescence optically-stimulated-luminescence electron-spin-resonance cosmogenic-nuclide exposure-dating burial-dating terrestrial-cosmogenic-nuclide in-situ-cosmogenic-nuclide meteoric-cosmogenic-nuclide fallout-radionuclide lead-210 cesium-137 plutonium americium radiocarbon carbon-14 calibration-curve intcal marine-reservoir-effect terrestrial-reservoir-effect hard-water-effect contamination pretreatment combustion graphitization accelerator-mass-spectrometry liquid-scintillation-counting gas-proportional-counting beta-counting gamma-spectrometry alpha-spectrometry mass-spectrometry inductively-coupled-plasma-mass-spectrometry thermal-ionization-mass-spectrometry secondary-ion-mass-spectrometry laser-ablation-inductively-coupled-plasma-mass-spectrometry electron-microprobe scanning-electron-microscopy transmission-electron-microscopy light-microscopy confocal-microscopy fluorescence-microscopy polarizing-microscopy phase-contrast-microscopy differential-interference-contrast-microscopy dark-field-microscopy bright-field-microscopy stereomicroscopy dissecting-microscopy microtomy sectioning staining mounting embedding fixation preservation collection curation vouchering repository herbarium museum archive database registry catalogue checklist inventory survey monitoring assessment evaluation appraisal audit review synthesis rapid-review scoping-review narrative-review critical-review state-of-the-art-review literature-review bibliometric-analysis citation-analysis co-citation-analysis bibliographic-coupling co-authorship-analysis collaboration-network knowledge-map concept-map ontology taxonomy classification nomenclature typification designation description diagnosis illustration measurement morphometry meristics count ratio index score rank grade scale level category class group set subset cluster clade lineage branch stem crown root node tip terminal internal basal derived ancestral plesiomorphic apomorphic synapomorphic autapomorphic homologous homoplastic convergent parallel reversal gain loss duplication deletion insertion inversion fusion fission polyploidy aneuploidy chromosome-number genome-size gene-number transcriptome proteome metabolome lipidome glycome interactome phenome connectome epigenome microbiome virome mycobiome bacteriome phytobiome rhizobiome endobiome ectobiome parasitome pathobiome diseasome toxome exposome foodome nutriome pharmacome toxicome adverse-outcome-pathway mode-of-action mechanism-of-action target-site receptor-binding enzyme-inhibition ion-channel-blockade membrane-disruption DNA-intercalation inflammation cell-differentiation cell-migration cell-adhesion cell-signaling signal-transduction gene-expression transcription translation post-translational-modification protein-folding protein-degradation protein-trafficking vesicle-transport exocytosis endocytosis phagocytosis pinocytosis mitophagy pexophagy ribophagy ER-phagy lysophagy lipophagy glycophagy ferritinophagy aggrephagy xenophagy entosis cytosis syncytium plasmodesmata gap-junction tight-junction adherens-junction desmosome hemidesmosome focal-adhesion cell-polarity cell-asymmetry cell-division mitosis meiosis cytokinesis karyokinesis chromosome-segregation spindle-assembly checkpoint DNA-replication DNA-recombination transposition retrotransposition horizontal-gene-transfer vertical-gene-transfer endosymbiosis symbiogenesis holobiont hologenome extended-phenotype niche-construction ecosystem-engineering keystone-process ecological-function ecosystem-function ecosystem-good natural-capital natural-resource renewable-resource non-renewable-resource common-pool-resource public-good private-good club-good externality market-failure government-failure policy-failure institutional-failure tragedy-of-the-commons free-rider collective-action social-dilemma prisoner's-dilemma chicken-game assurance-game coordination-game zero-sum-game positive-sum-game negative-sum-game win-win lose-lose win-lose Pareto-optimal Pareto-improvement Kaldor-Hicks-improvement cost-benefit-analysis cost-effectiveness-analysis multi-criteria-decision-analysis decision-support-system expert-system knowledge-based-system rule-based-system case-based-reasoning machine-learning deep-learning neural-network random-forest support-vector-machine decision-tree regression-tree classification-tree clustering-algorithm dimensionality-reduction feature-selection feature-extraction pattern-recognition image-analysis signal-processing time-series-analysis spatial-analysis geographic-information-system remote-sensing satellite-imagery aerial-photography drone-imagery LiDAR radar sonar seismic geophysical geochemical biogeochemical ecoinformatics bioinformatics computational-biology systems-biology synthetic-biology biotechnology nanotechnology genetic-engineering genome-editing CRISPR TALEN zinc-finger-nuclease transgenic cisgenic intragenic subgenic agrobacterium-mediated-transformation biolistics electroporation microinjection protoplast-fusion somatic-hybridization cybrid asymmetric-hybrid synthetic-polyploid doubled-haploid haploid-induction anther-culture microspore-culture ovule-culture embryo-culture endosperm-culture protoplast-culture cell-culture tissue-culture organ-culture shoot-culture root-culture callus-culture suspension-culture bioreactor hairy-root-culture transformation hardening micropropagation clonal-propagation meristem-culture shoot-tip-culture axillary-bud-culture nodal-culture leaf-culture petiole-culture stem-culture internode-culture rhizome-culture bulb-culture corm-culture tuber-culture seed-culture zygotic-embryo-culture somatic-embryo-culture somatic-embryogenesis organogenesis caulogenesis rhizogenesis adventitious-shoot-formation direct-regeneration indirect-regeneration primary-metabolism secondary-metabolism biosynthesis biotransformation bioconversion biodegradation bioremediation phytoremediation mycoremediation zooremediation bioaugmentation biostimulation natural-attenuation monitored-natural-attenuation engineered-natural-attenuation permeable-reactive-barrier pump-and-treat soil-vapor-extraction air-sparging thermal-desorption incineration landfilling containment capping slurry-wall grout-curtain sheet-piling clay-liner geomembrane geotextile geogrid geocomposite geosynthetic geofabric geonet geocell geopipe geostrip geofoam geobag geotube geocontainer geomat geoblanket geospacer geodrain geoinjection geogrout geopier geocolumn geopile geowall geoberm geotrench geocut geofill geolift geoslab geopanel geoblock geobrick geotile geopaver geoweb geomattress geocushion